The present description relates to an IoT management device for carrying out a condition modification mode and a method for controlling same, the IoT management device which can modify a preset condition by means of a reference to data related to the IoT device. An IoT management device, according to the present description, comprises a communication unit for transmitting and receiving data to and from one or more sub-IoT devices (hereinafter, referred to as “sub-devices”) connected to a communication network; and a control unit for receiving from the communication unit data, which comprises time information and is related to the usage or state of the sub-devices, and for performing a preset operation when in a condition (hereinafter, referred to as “a point of condition satisfaction”) in which data (hereinafter, referred to as “first data”), connected to a preset condition, among the data satisfies the condition, wherein the control unit can carry out a condition modification mode for asking a user whether or not the condition is to be modified into a condition to which added is data (hereinafter, referred to as “second data”) not connected to the condition among data having time information before the point of condition satisfaction.